This paper addresses the works of Henri Coudreau, a little-known French explorer of Guiana and Amazonia who was later forgotten by the ‘heroic’ histories of exploration because of his unruliness and nonconformist attitudes. Drawing on the literature of postcolonialism and tropicality as well as on recent studies of anti-colonialist geographies, I address for the first time Coudreau's geography from the perspective of anarchist and critical thinking. My main argument is that Coudreau's work is a further example of the complexity and heterogeneity of the European intellectual field during the imperial age. Despite having come of age intellectually among all the European racist and ethnocentric prejudices of his day, Coudreau developed a diffe...